(svn r12651) -Fix (r12644) [FS#1915]: Dropdown widget width should be one pixel less than window width, not one more.

src/widgets/dropdown.cpp

@@ -258,7 +258,7 @@ void ShowDropDownList(Window *w, DropDownList *list, int selected, int button, u
 		_dropdown_menu_widgets);
 
 	dw->widget[0].color = wi->color;
-	dw->widget[0].right = width + 1;
+	dw->widget[0].right = width - 1;
 	dw->widget[0].bottom = height - 1;
 
 	dw->SetWidgetHiddenState(1, !scroll);